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Observable.ToAsync<T1, T2, T3, T4> Method (Action<T1, T2, T3, T4>)

Converts the function into an asynchronous function.

Namespace:  System.Reactive.Linq
Assembly:  System.Reactive (in System.Reactive.dll)

public static Func<T1, T2, T3, T4, IObservable<Unit>> ToAsync<T1, T2, T3, T4>(
	this Action<T1, T2, T3, T4> action

Type Parameters


The first type of function.


The second type of function.


The third type of function.


The fourth type of function.


Type: System.Action<T1, T2, T3, T4>
The action used to synchronization.

Return Value

Type: System.Func<T1, T2, T3, T4, IObservable<Unit>>
The function into an asynchronous function.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type Action<T1, T2, T3, T4>. When you use instance method syntax to call this method, omit the first parameter. For more information, see https://msdn.microsoft.com/en-us/library/bb384936(v=vs.103).aspx or https://msdn.microsoft.com/en-us/library/bb383977(v=vs.103).aspx.
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